package com.dong;

import redis.clients.jedis.Jedis;

import java.util.Set;

public class TestKey {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("127.0.0.1",6379);
        System.out.println("清空数据:"+jedis.flushDB());
        System.out.println("判断某个键是否存在:"+jedis.exists("username"));
        System.out.println("新增<'username','lindongsong'>的键值对:"+jedis.set("username","lindongsong"));
        System.out.println("新增<'password','password'>的键值对:"+jedis.set("password","1234"));
        System.out.println("系统中的所有的键如下:");
        Set<String> keys = jedis.keys("+");
        System.out.println(keys);
        System.out.println("删除键password:"+jedis.del("password"));
        System.out.println("判断键password是否存在:"+jedis.exists("password"));
        System.out.println("查看键username所存储的值的类型:"+jedis.type("username"));
        System.out.println("随机返回key空间的一个:"+ jedis.randomKey());
        System.out.println("重命名为key:"+jedis.rename("username","name"));
        System.out.println("取出改后的name:"+jedis.get("name"));
        System.out.println("按搜索引查询:"+jedis.select(0));
        System.out.println("删除当前选择数据库中的所有key:"+jedis.flushDB());
        System.out.println("返回当前数据库中的key数目:"+jedis.dbSize());
        System.out.println("删除所有数据库中的所有key:"+jedis.flushAll());
    }
}
